H. Niki

Generation of upper-hybrid solitons in a weak magnetic field

H. Sugai, S. Takeda, H. Niki, 1981 .

Whistler wave trapping in a density crest

H. Sugai, M. Inutake, S. Takeda, 1979 .

Whistler Wave Trapping in a Narrow Density Trough

K. Mima, H. Sugai, S. Takeda, 1979 .

Ground-state energy of high-density helium

Tutô Nakamura, H. Miyagi, H. Nagara, 1980 .